abstract |
The invention relates to a method for recovering calcium and magnesium ions in desulfurization wastewater by a lime milk method, and belongs to comprehensive recycling and utilization of wastewater in the field of environmental protection technology, and the invention aims at high calcium, magnesium ion and sulfate ion concentration in desulfurization wastewater of a power plant, The lime milk is added to the desulfurization wastewater of the power plant to separate the calcium and magnesium ions, and then the slurry magnesium hydroxide product and the calcium sulfate and sodium chloride by-products are obtained by recycling; the invention not only realizes the reduction of waste water And the waste water has been utilized. |